- Announcement about May 10th, 2018 update and your password.
Have this LED board.
LED's are pulled high.
Will use one LED on breadboard first to test this.
What's a Microcontroller covers low and high pull ups.
That's from old TTL days.
Plus you read a high to know circuit is connected. When LED is off.
Basic Stamps,SX's and PIC's all share common characteristics.
'Are you ready to move up to an SX?'-Parallax
SX28 is drop in replacement for PIC16F57